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Harmless inspecting method

A non-destructive inspection and component technology, applied to material inspection products, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, auxiliary devices, etc., can solve problems such as increasing costs and spending time

Inactive Publication Date: 2003-04-16
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, time-consuming and cost-intensive

Method used

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Examples

Experimental program
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Embodiment Construction

[0020] According to Figure 1- Figure 8 A first embodiment of the present invention will be described. In Figure 1, figure 2 , image 3 , Figure 4 , the device moves to the right.

[0021] A pair of components 30 , 30 to be joined is fixed on the upper surface of the stand 20 . Friction stir welding is performed at the butt joint of a pair of parts. The friction stir welding device 100 and the non-destructive inspection device 200 are installed on the moving bodies 110 and 210 to move across the stand 20 . The device 100, 200 can move along the beam 105, 205 of the moving body. In addition, the rotating tools and inspection devices of the apparatuses 100 and 200 can be raised and lowered relative to the beams 105 and 205 . In the direction of the friction stir welding, the friction stir welding apparatus 100 and the nondestructive inspection apparatus 200 are arranged in this order from the front (head).

[0022] The parts 30 , 30 are extruded profiles with protrusion...

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PUM

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Abstract

There is provided a nondestructive inspection method to automate inspecting work on a friction stir welded part. A rotary tool 140 is relatively moved against members 30, 30 to be welded so as to perform friction stir welding of said members, while blades 145 mounted on the rotary tool 140 and a rotary brush 220 are used to cut the welded portion, and swarfs on the cut surface are removed through a suction opening 225, before medium liquid is supplied on said cut surface through a supply opening 240. Next, an inspection roller 250 is rotated on the surface of the welded portion for inspection. A probe 251 is provided within the roller 250. Upon detecting defect, paint is applied to the position of defect by a marking device 270. Thereafter, based on said marking, the joint portion is cut and repaired by welding.

Description

technical field [0001] The present invention relates to a method for nondestructive inspection of parts joined by friction stir welding and the like, and is suitable, for example, for nondestructive inspection of parts of aluminum alloy parts used in railway vehicles and buildings after friction stir welding. Background technique [0002] The friction stir welding method is a method in which a round bar (called a rotary tool) inserted into the parts to be joined is moved along the joint line while rotating it, and the joint part is heated, softened, plastically flowed, and solid-phase joined. The rotary tool is formed of a thick round portion and a thin round portion. Insert the thin round part into the part and touch the end face of the thick round part to the part. A protrusion is preliminarily provided in the junction as a filling material when there is a gap between the two parts. The axis of the rotary tool has a slight inclination. In addition, a cutting edge is pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04B23K20/12B23K31/00B23K31/12B23K37/08G01N29/22G01N33/20
CPCB23K37/08G01N2291/044B23K20/1245B23K31/125G01N29/04
Inventor 石田良二江角昌邦藤井刚小方雅已
Owner HITACHI LTD